Fuggiamo dinnanzi agli oli idrogenati ... facciamo bene?
Biochemistry (Mosc). 2010 Dec;75(12):1491-7.
Dietary supplementation of old rats with hydrogenated peanut oil
restores activities of mitochondrial respiratory complexes in skeletal
muscles.
Bronnikov GE, Kulagina TP, Aripovsky AV.
Institute of Cell Biophysics, Russian Academy of Sciences, Pushchino,
Moscow Region 142290, Russia. gennady_bronnikov@@@rambler.ru
The effect of dietary supplementation of old rats (26-33 months) with
hydrogenated peanut oil on the activity of mitochondrial enzymes in
skeletal muscles has been studied. The activities of NADH-coenzyme Q1
oxidoreductase, cytochrome c oxidase, and citrate synthase were
determined spectrophotometrically in muscle homogenates. The
activities of respiratory complexes I and IV were shown to
significantly decrease with the age compared to the activity of the
same enzymes in young animals, while the activity of citrate synthase
was virtually unchanged. The fatty acid composition of muscle
homogenates of old rats differed from that of young animals by a
reduced content of myristic, oleic, linoleic, and á-linolenic acids
and enhanced content of dihomo-ã-linolenic, arachidonic, and
docosahexaenoic acids. Per oral supplementation of the old rats with
hydrogenated peanut oil completely restored the activity of complex IV
and increased the activity of complex I to 80% of the value observed
in muscles of young animals, reducing the content of stearic, dihomo-ã-
linolenic, arachidonic, eicosapentaenoic, docosapentaenoic, and
docosahexaenoic acids relative to that in the groups of old and young
rats. The content of oleic and linoleic acids increased relatively to
that in the group of the old rats, as well as young animals. The
possible mechanisms of the restoration of the activity of the
respiratory enzymes under the administration of hydrogenated peanut
oil are discussed.
PMID: 21314620 [PubMed - in process]
Biochemistry (Mosc). 2010 Dec;75(12):1491-7.
Dietary supplementation of old rats with hydrogenated peanut oil
restores activities of mitochondrial respiratory complexes in skeletal
muscles.
Bronnikov GE, Kulagina TP, Aripovsky AV.
Institute of Cell Biophysics, Russian Academy of Sciences, Pushchino,
Moscow Region 142290, Russia. gennady_bronnikov@@@rambler.ru
The effect of dietary supplementation of old rats (26-33 months) with
hydrogenated peanut oil on the activity of mitochondrial enzymes in
skeletal muscles has been studied. The activities of NADH-coenzyme Q1
oxidoreductase, cytochrome c oxidase, and citrate synthase were
determined spectrophotometrically in muscle homogenates. The
activities of respiratory complexes I and IV were shown to
significantly decrease with the age compared to the activity of the
same enzymes in young animals, while the activity of citrate synthase
was virtually unchanged. The fatty acid composition of muscle
homogenates of old rats differed from that of young animals by a
reduced content of myristic, oleic, linoleic, and á-linolenic acids
and enhanced content of dihomo-ã-linolenic, arachidonic, and
docosahexaenoic acids. Per oral supplementation of the old rats with
hydrogenated peanut oil completely restored the activity of complex IV
and increased the activity of complex I to 80% of the value observed
in muscles of young animals, reducing the content of stearic, dihomo-ã-
linolenic, arachidonic, eicosapentaenoic, docosapentaenoic, and
docosahexaenoic acids relative to that in the groups of old and young
rats. The content of oleic and linoleic acids increased relatively to
that in the group of the old rats, as well as young animals. The
possible mechanisms of the restoration of the activity of the
respiratory enzymes under the administration of hydrogenated peanut
oil are discussed.
PMID: 21314620 [PubMed - in process]